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myronpacis1128
06.02.2021 •
Mathematics
Which function does the graph represent?
Of(x) = (x - 2)2 + 3
Of(x) = -(x - 2)2 + 3
Of(x) = (x + 2)2 + 3
O f(x) = -(x + 2)2 + 3
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Ответ:
The function which represents the graph is:
Hence, option B is correct.
The graph is also attached.
Step-by-step explanation:
From the graph, it is clear that:
The vertex = (2, 3)
The y-intercept = (0, -1)
Let us check the equation
Determining the y-intercept:
The value of the y-intercept can be determined by setting x = 0, and determining the corresponding value of y.
substituting x = 0 in teh equation
Thus,
The point representing the y-intercept is: (0, -1)
Determining the vertex:
The vertex of an up-down facing parabola of the form ax² + bx + c is:
As the equation is
Rewriting the equation
in the form ax² + bx + c:
The Parabola params are:
Thus,
Now plug in
in the equation to find ![y_v](/tpl/images/1099/0414/eab70.png)
Therefore, the vertex of the equation is: (2, 3)
Hence, the function which represents the graph is:
Hence, option B is correct.
The graph is also attached.
Ответ: